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Jack's Mannequin performed the 7-Eleven MixMaker Summer Concert Series kickoff concert at the Roxy Theater on May 25, 2011 to promote a four concert series and new Slurpee flavors. Fans were treated to samples of the frozen drink as they waited in line for the special performance of Jack's Mannequin. The sold-out show went on sale earlier this month for only $7.11. Opening for Jack's Mannequin was Boyce Avenue. All images by Christopher Victorio.